H3C Technologies H3C S7500E Series Switches - Manual (Page 41)

2-9
Task Remarks
Configuring 802.1p Precedence for IGMP
Messages
Optional
Configuring Multicast Group Replacement Optional
z Configurations made in IGMP snooping view are effective for all VLANs, while
configurations made in VLAN view are effective only for ports belonging to the current
VLAN. For a given VLAN, a configuration made in IGMP snooping view is effective only if
the same configuration is not made in VLAN view.
z Configurations made in IGMP snooping view are effective for all ports; configurations made
in Ethernet interface view are effective only for the current port; configurations made in
Layer 2 aggregate interface view are effect only for the current interface; configurations
made in port group view are effective only for all the ports in the current port group. For a
given port, a configuration made in IGMP snooping view is effective only if the same
configuration is not made in Ethernet interface view, Layer 2 aggregate interface view or
port group view.
z For IGMP snooping, configurations made on a Layer 2 aggregate interface do not interfere
with configurations made on its member ports, nor do they take part in aggregation
calculations; configurations made on a member port of the aggregate group will not take
effect until it leaves the aggregate group.
Configuring Basic Functions of IGMP Snooping
Configuration Prerequisites
Before configuring the basic functions of IGMP snooping, complete the following task:
z Configure the corresponding VLANs.
Before configuring the basic functions of IGMP snooping, prepare the following data:
z Version of IGMP snooping.
Enabling IGMP Snooping
Follow these steps to enable IGMP snooping:
To do... Use the command... Remarks
Enter system view system-view —
Enable IGMP snooping globally and
enter IGMP-Snooping view
igmp-snooping
Required
Disabled by default